1-(2,5,6-tri-O-acetyl-1,4-anhydro-D-sorbitol-3-yloxy)-4-(2,5,6-tri-O-acetyl-1,4-anhydro-D-sorbitol-3-yloxy)but-2-ene 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 10.5h,
生成
(E)-1-(1,4-anhydro-D-sorbitol-3-yloxy)-4-(1,4-anhydro-D-sorbitol-3-yloxy)but-2-ene 、
(Z)-1-(1,4-anhydro-D-sorbitol-3-yloxy)-4-(1,4-anhydro-D-sorbitol-3-yloxy)but-2-ene